Educational worksheet for students to learn about fast and slow changes on the Earth's surface through multiple-choice questions.

Here is the correct answer for each question, along with a clear explanation:

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1. We live in this layer of the planet Earth.
✔ c) crust

Explanation: The Earth has three main layers: the core (innermost), the mantle (middle), and the crust (outermost). Humans live on the surface, which is part of the crust — the thinnest and outermost layer.

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2. The weathering and erosion produce _______ changes on the Earth’s surface.
✔ b) slow

Explanation: Weathering (breaking down rocks) and erosion (moving rock pieces) happen over long periods — thousands or millions of years. These are considered slow changes, unlike earthquakes or volcanic eruptions, which are fast.

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3. _________ is the breaking down of rocks.
✔ a) weathering

Explanation: Weathering is the process that breaks rocks into smaller pieces without moving them. This can be physical (like freezing/thawing) or chemical (like acid rain).

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4. _________ is the dropping of pieces of rock in a new place.
✔ c) deposition

Explanation: After erosion moves rock particles, deposition occurs when those particles settle or are “dropped” in a new location — like sediment settling at the bottom of a river or beach.

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5. _________ is the movement of pieces of rock from one place to another.
✔ b) erosion

Explanation: Erosion is the process that *transports* weathered rock material — by wind, water, ice, or gravity — from one place to another.

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6. _________ it releases lava, ashes and produces explosions.
✔ a) volcano eruption

Explanation: A volcanic eruption is when magma (lava) and ash burst out of a volcano, often explosively. Landslides move earth but don’t release lava; earthquakes shake the ground but don’t erupt.

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7. A Tornado is a powerful ______ cone that touches the ground.
✔ b) wind

Explanation: A tornado is a violently rotating column of wind that extends from a thunderstorm to the ground. It looks like a funnel or cone shape.

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8. Hurricane is a tropical storm with violent ______ and ______.
✔ c) wind and water

Explanation: Hurricanes are large, powerful storms with very strong winds and heavy rain (water), often causing flooding and storm surges. They do not involve fire or rocks.

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✔ Final Answer Key:

1. c) crust
2. b) slow
3. a) weathering
4. c) deposition
5. b) erosion
6. a) volcano eruption
7. b) wind
8. c) wind and water

Let me know if you’d like a printable version or flashcards for review! 🌍🌀